| Abstract: | For organic-inorganic composite materials, the spatial dispersion of inorganic fillers in the organic matrix is of great significance for designing and manufacturing high-performance composite materials. To improve the understanding of the micro-physical mechanism of the filler-reinforced polymer matrix, we studied the relationship between filler network structure and macro-mechanical properties of silicone rubber by using fluorescent labeling technology and three-dimensional (3D) visualization imaging. The experimental results showed that a good filler network structure in the polymer matrix can more effectively dissipate external mechanical energy, which generate a visible mechanical strengthening effect. Additionally, this visualization method truly reflects the macrodispersion of the filler and the evolution of the filler network structure under dynamic stress due to its non-invasive and intuitive characteristics, which provides new theoretical guidance for the design of high-performance composites. |
